Sökning: "nerve fiber formation"

Visar resultat 6 - 10 av 15 avhandlingar innehållade orden nerve fiber formation.

  1. 6. Design of Functional Degradable Aliphatic Polyesters and Porous Tissue Engineering Scaffolds

    Författare :Peter Plikk; Ann-Christine Albertsson; Marek Kowalczuk; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ring-opening polymerization; Stannous octoate; 2; 2’-azoisobutyronitrile; 1; 5-dioxepane-2-one; ε-caprolactone; L-lactide; Trimethylene carbonate; 2-methylene-1; 3-dioxe-5-pene; Copolymer; Porous scaffold; Porous tubular scaffold; Electron beam; Gamma irradiation; Polymer chemistry; Polymerkemi;

    Sammanfattning : The regeneration of damaged tissues or organs using porous scaffolds which act as temporary guides for the patient’s own cells, i.e. tissue engineering, is a means to overcome the shortcomings of current standard medical treatments. LÄS MER

  3. 7. Engineering and Functionalization of Hemicellulose Hydrogels

    Författare :Weifeng Zhao; Karin Odelius; Ann-Christine Albertsson; Ulrica Edlund; Tina Vermonden; KTH; []
    Nyckelord :Hemicellulose; O-acetyl-galactoglucomannan; hydrogels; stimuli-responsive; aniline tetramer; aniline pentamer; electro-active; conductivity; pH-sensitivity; magnetic field-responsive; micro-gels; swelling; drug delivery.; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Hemicellulose is the second most abundant component in wood and is an important renewable resource  that is used in films, paper composites and biofuels.  Hemicelluloses  have  several  advantages,  including  their abundance,  degradability  and  renewability. LÄS MER

  4. 8. Intracranial and intraocular grafting of fetal ventral mesencephalic and striatal tissues : neuronal survival and nerve growth characteristics

    Författare :Lars Björklund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Parkinson s disease; grafting; ventral mesencephalon; striatum; dopamine; innervation; growth pattem; GDNF; U-74006F;

    Sammanfattning : Parkinson's disease is caused by degeneration of dopaminergic neurons in the ventral mesencephalon. Various animal models and clinical trials has shown that grafts of fetal ventral mesencephalic tissue can survive and functionally reinnervate the dopamine-depleted striatum, leading to long-term improvements of therapeutic value, but still symptomatic relief is far from complete. LÄS MER

  5. 9. Biosynthetic conduits and cell transplantation for neural repair

    Författare :Jonas Pettersson; Lev Novikov; Liudmila Novikova; Mikael Wiberg; Lars Dahlin; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Spinal cord injury; Peripheral nerve injury; Nerve graft; Biosynthetic conduit; Nerve tissue engineering; Neural prosthesis; Neuroscience; Neurovetenskap; neurologi; Neurology; neurokirurgi; Neurosurgery;

    Sammanfattning : Spinal cord injury results in complete failure of the central neurons to regenerate and is associated with cyst formation and enlargement of the trauma zone. In contrast to the spinal cord, axons in the injured peripheral nerve have the capacity to undergo some spontaneous regeneration. LÄS MER

  7. 10. Expression and regulation of neuronal messenger molecules : focus on the NO-cGMP pathway and galanin in autonomic and sensory neurons

    Författare :Kristina Holmberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :adrenal gland; autonomic ganglia; cGMP; dorsal root ganglion; galanin; immunohistochemistry; in situ hybridization; nerve growth factor; neuropeptides; nitric oxide synthase; sodium nitroprusside; transgenic mice;

    Sammanfattning : The autonomic nervous system consists of the sympathetic, parasympathetic and enteric divisions. The sympathetic pre- and paravertebral neurons are in principle of noradrenergic phenotype. However, originally pharmacological experiments indicated that sympathetic fibers projecting to the sweat glands are cholinergic. LÄS MER